/*
 * Copyright (c) 2021 Huawei Device Co.,  Ltd.
 * Licensed under the Apache License,  Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,  software
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,  either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef SWANLINK_FINANCE_FDHANDLER_H
#define SWANLINK_FINANCE_FDHANDLER_H
#include <unistd.h>
#include <mutex>
#include <unordered_map>
#include <memory>
#include <string>
#include "iadaptor.h"

namespace SwanLink {
namespace Finance {
class FdHandler {
 public:
    FdHandler();
    ~FdHandler();
    void SetBaseId(int id);
    bool IsTakeUp(const std::string& dev);  // 设备节点是否被打开占用
    int GetFd(const std::string& dev);
    int AddFd(const std::string& dev, const std::shared_ptr<IAdaptor>& adaptor);
    std::shared_ptr<IAdaptor>  GetAdaptor(int fd);
    void DelFd(int fd);
 private:
    int buildID();
 private:
    // <设备节点，<设备句柄，适配器> unordered_map
    struct ID_Adaptor {
       int id;
       std::shared_ptr<IAdaptor> adaptor;
    };
    std::unordered_map< std::string, ID_Adaptor> m_mapHandle;

    uint32_t m_objectId;
    std::recursive_mutex m_mutex;
};
}  // namespace Finance
}  // namespace SwanLink
#endif  // SWANLINK_FINANCE_FDHANDLER_H
